/Engine/Source/Editor/UnrealEd/Classes/CookOnTheSide/CookOnTheFlyServer.h
Initialize cook on the fly server
true on success, false otherwise.
bool StartCookOnTheFly ( [FCookOnTheFlyStartupOptions](API\Editor\UnrealEd\CookOnTheSide\UCookOnTheFlyServer\FCookOnTheFlyStartupOptions) InCookOnTheFlyOptions )